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BOSWELLIA CARTERII OIL.

Valuable CAS 89957-98-2 / 8050-07-5 / FRAGRANCE, TONIC

A botanical resin extract recognized for its potent ability to modulate skin inflammation and accelerate tissue recovery. In precision skincare, it serves as a dual-purpose functional ingredient that provides both therapeutic soothing and natural masking properties.

soothing masking skin conditioning antimicrobial

Science

It functions by inhibiting the 5-lipoxygenase (5-LOX) enzyme, effectively reducing the synthesis of pro-inflammatory leukotrienes. Furthermore, it downregulates inflammatory biomarkers such as IP-10 and ICAM-1 while shielding dermal fibroblasts from oxidative stress to facilitate the transition from the inflammatory phase to the proliferative phase of skin repair.


Research

Medium confidence
Effective range 0.05–2%
Optimal

0.25%

Key findings

  1. 01 Formula Botanica (2021) demonstrated skin conditioning at 0.2% in serum formulations.
  2. 02 Whatsinmyjar (2024) analysis confirmed antimicrobial and soothing efficacy at 0.05% - 0.25% in anti-acne applications.
  3. 03 Taleb et al. (2024) observed significant reduction in ICAM-1 and IL-β markers using a 2.0% topical nanoemulsion.

Transparency

Commonly dusted
Min. effective
0.05%
Red flag below
0.01%

Often included at negligible levels solely for its aromatic profile. For legitimate anti-inflammatory and regenerative benefits, concentrations should ideally meet or exceed 0.2%.


The Formula

Solubility
Oil
Optimal pH 5.5 – 7
0 7 14

Stability

Highly susceptible to oxidation and evaporation; stability is significantly improved through molecular encapsulation or nanoemulsion delivery systems.

Synergies

  • Beta-cyclodextrin
  • Gotu Kola
  • Lipids

Conflicts

  • Strong acids
  • Strong alkalis
  • Oxidizing agents

Safety

CIR Status
Safe as used
Max tested
0.5%
Sensitization risk Moderate

Usage is typically restricted to 0.5% or less in leave-on products due to the presence of natural allergens such as limonene and alpha-pinene.


Your Skin

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Moderate
Comedogenicity Low

Our Assessment

Valuable

A high-performance botanical for inflammatory control and repair, provided it is formulated to prevent oxidation and used within safe concentration limits.


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